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    Introducing Netgate Nexus: Multi-Instance Management at Your Fingertips.

    IPv6 Leakage in IPsec Split-Tunneling (pfSense + FreeRADIUS)

    Scheduled Pinned Locked Moved IPsec
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      last edited by

      Hi all,
      Client traffic leaks via IPv6, bypassing the tunnel because pfSense is configured only for IPv4.

      Setup:
      Client: Dual-stack (IPv4/IPv6).
      pfSense: IPv4-only, IPsec Split Tunneling + FreeRADIUS.
      Server: Dual-stack (IPv4/IPv6).

      What is the best way to force IPv4 preference on the client side via pfSense/RADIUS settings? I need all traffic to the server to stay within the tunnel.
      Thanks for help.

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